As requested by Richard G here: http://gcc.gnu.org/ml/gcc-patches/2007-05/msg00945.html
I'm re-visiting during stage3 the minimum MPFR version required by GCC. At the time of the above post, mpfr-2.3.0 had not yet been released, but it was this past August, and one can obtain it here: http://www.mpfr.org/mpfr-current The current situation is that GCC requires only mpfr-2.2.0, however it recommends mpfr-2.2.1 in the documentation and configure checks. (If configure find 2.2.0, it will say something like "buggy but acceptable" and continue bootstrapping). Also, there is some functionality for builtin bessel, remquo and gamma functions that is only active when mpfr-2.3.0 is available. The testcase gcc.dg/torture/builtin-math-4.c for these mpfr-2.3.0 functions is XFAILed at the moment. Our options include: 1. Do nothing. Things work, don't break it. Revisit again in stage1. 2. Continue accepting 2.2.0, but update the recommended version from 2.2.1 to 2.3.0. This would entail updating the configure warning, the docs and the removing the XFAIL from the testcase. This option would cause no change in hard bootstrap requirements. 3. In addtion to #2, hard fail for anything less than mpfr-2.3.0. I have no strong opinion on which way to go. Thoughts? --Kaveh -- Kaveh R. Ghazi [EMAIL PROTECTED]
